Add support of vrdisplayconnect and vrdisplaydisconnect event

third_party/WebKit/Source/modules/vr/NavigatorVR.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/vr/NavigatorVR.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
@@ skipping 90 matching lines @@
 }
 
 void NavigatorVR::fireVRDisplayPresentChange(VRDisplay* display)
 {
     if (m_frame && m_frame->localDOMWindow()) {
         m_frame->localDOMWindow()->enqueueWindowEvent(
             VRDisplayEvent::create(EventTypeNames::vrdisplaypresentchange, true, false, display, ""));
     }
 }
 
+void NavigatorVR::fireVREvent(VRDisplayEvent* event)
+{
+    if (m_frame && m_frame->localDOMWindow()) {
+        m_frame->localDOMWindow()->enqueueWindowEvent(event);
+    }
+}
+
 } // namespace blink